From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753112AbcLEXmc (ORCPT ); Mon, 5 Dec 2016 18:42:32 -0500 Received: from mail-wj0-f194.google.com ([209.85.210.194]:33883 "EHLO mail-wj0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752487AbcLEXma (ORCPT ); Mon, 5 Dec 2016 18:42:30 -0500 Date: Tue, 6 Dec 2016 00:40:06 +0100 From: Alexis Berlemont To: linux-kernel@vger.kernel.org Cc: peterz@infradead.org, mingo@redhat.com, acme@kernel.org, alexander.shishkin@linux.intel.com Subject: Re: [PATCH v3 0/2] perf: measure page fault duration in perf trace Message-ID: <20161205234006.GA22075@therese> References: <20161027083714.GF3568@worktop.programming.kicks-ass.net> <20161118002138.29150-1-alexis.berlemont@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20161118002138.29150-1-alexis.berlemont@gmail.com> User-Agent: Mutt/1.7.1 (2016-10-04) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Alexis Berlemont wrote: > Hi, > > Here is another attempt to make the perf-trace subcommand print the > page fault durations. > > This solution is based on static tracepoints and it was necessary to > add 2 more tracepoints. I understood that adding tracepoints is a > questionable solution; I can try something else if someone has another > idea. > Could you indicate me a way to improve these patches so as to move forward ? Regards, Alexis. > Alexis. > > Alexis Berlemont (2): > perf, x86-mm: declare page-faults tracepoints like irq-vectors ones > perf: add page fault duration measures in perf trace > > arch/x86/include/asm/trace/exceptions.h | 17 ++- > arch/x86/mm/fault.c | 17 ++- > tools/perf/Documentation/perf-trace.txt | 4 +- > tools/perf/builtin-trace.c | 231 ++++++++++++++++++++++++++++---- > 4 files changed, 238 insertions(+), 31 deletions(-) > > -- > 2.10.2 >